сократите дробь по образцу:
в) 2/8, 8/24, 12/28, 45/100
д) 12/18, 18/20, 20/24, 24/30
ж) 21/56, 144/120, 156/128, 396/240
в) 2/8, 8/24, 12/28, 45/100
д) 12/18, 18/20, 20/24, 24/30
ж) 21/56, 144/120, 156/128, 396/240
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В. 2/8=2/2*4=1/48/24=8/8*3=1/3
12/28=2*6/2*14=6/14=2*3/2*7=3/7
45/100=5*9/5*20=9/20
д) 12/18=2*6/2*9=6/9=2*3/3*3=2/3
18/20=2*9/2*10=9/10
20/24=2*10/2*12=10/12=2*5/2*6=5/6
24/30=2*12/2*15=12/15=3*4/3*5=4/5
ж) 21/56=7*3/7*8=3/8
144/120=12*12/12*10=12/10=2*6/2*5=6/5
156/128= 4*39/4*32=39/32
396/240=2*198/2*120=198/120=2*99/2*60=99/60=3*33/3*20=33/20